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Let X denotes the number of hours you st...

Let X denotes the number of hours you study during a randomly selected school day. The probability that X can take the values x, has the following form, where is some unknown. constant.
`P(x)={:{(0,if x=0),(k x,if x=1 or 2),(k(5-x),if x=3 or 4),(0,"otherwise"):}`
Find the value of k

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